Work-To-Rest Ratios

Hyperthermia Clinical Trial

Official title:

Work-To-Rest Ratios

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05327764
• Other study ID #: STUDY00006115
• Status: Completed
• Phase: N/A
• Start date: March 21, 2022
• Est. completion date: November 5, 2023

Study information

• Verified date: November 2023
• Source: State University of New York at Buffalo
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of the study is to compare physiological responses to two hours of work adhering to two variations of a work-to-rest ratio in a hot environment.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 15
• Est. completion date: November 5, 2023
• Est. primary completion date: November 5, 2023
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 39 Years

Eligibility

Inclusion Criteria:

• Healthy 18-39 year old individuals
• Physically active

Exclusion Criteria:

• History of cardiovascular, metabolic, respiratory, neural, or renal disease
• Hypertensive or tachycardic during the screening visit (systolic blood pressure = 140 mmHg, diastolic blood pressure = 90 mmHg, resting heart rate = 100 bpm)
• Taking medication or supplements with a known side effect of affecting physiologic responses to exercise (e.g., acetaminophen, beta blockers, statins, aspirin)
• Any form of tobacco or nicotine use in the past six months
• Current musculoskeletal injury impacting physical activity
• A positive pregnancy test at any point in the study
• Study physician discretion based on any other medical condition or medication

Related Conditions & MeSH terms

• Hyperthermia

Intervention

Other:
• Work to rest cycles of 40:20 minutes
Walking in a hot environment for 2 hours with repeated 40 minutes of work and 20 minutes of rest
• Work to rest cycles of 20:10 minutes
Walking in a hot environment for 2 hours with repeated 20 minutes of work and 10 minutes of rest

Locations

Country	Name	City	State
United States	University at Buffalo	Buffalo	New York

Sponsors (1)

Lead Sponsor	Collaborator
State University of New York at Buffalo

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in core body temperature	Core body temperature is measured using a rectal thermistor	Upon completion of 2 hours of the work protocol
Primary	Change in heart rate	Heart rate is measured using a telemetry strap	Upon completion of 80 minutes of work